Pencil.



E. L. SGHMITZ.

PENOIL.

APPLICATION FILED DBO.8, 1908.

Patented Jam 4, 1910.

Ill/ll Ill ATTORNEYS umuzw. I mum in, rnom-urmumnu. wmnavm n c TEDSTATES PATENT OFFICE.

EGON L. SOHMI'IZ, OF NEW YORK, N. Y., AESIGNOR TO EIBEBHARD FABER PENCILCOMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

PENCIL.

Specification of Letters Patent.

Patented J an. 4, 1910.

Application filed December 8, 1808. Serial No. 466,573.

To all whom it may concern:

Be it known that I, EooN L. Semrrrz, a citizen of the United States,residing in the city, county, and State of New York, have invented acertain new and useful Improvement in Pencils, of which the following isa specification.

This invention relates to pencils of the type having a stick of leadmovable within a wider and champio devices for gripping the lead-stickand ho ding it with its end projecting beyond the end of the holder.

The invention is directed to the provision of an improved pencil of thistype which has the shape of an ordinary sharpened pencil and is,therefore, more convenient to use, which is of attractive appearance, inwhich the lead-stick is held firmly either within the holder or with itsend pro ecting beyond the holder so that danger 0 breaking of the leadis reduced to a minimum, in which the parts of the completed pencilcannot be disassembled, and which may be manufactured at small cost.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, in which- Fi 'ure l is a perspective view of thepencil, Fig. 2 is a central lonf itudiual section of the same, Figs. 3,4 and 5 are transverse sections on lines 33, 4::t and 55 of Fig. 2, Fig.6 shows the several arts of the pencil detached in elevation, ant Fig. 7is a central longitudinal section of a slightly modified form of theinvention.

Referring to these drawings, the pencil consists of a tubular casing 1,within which is a lead-holding member 2, having a bore to receive thelead-stick and clamping devices for gripping the stick to hold it inproper position, and the stick of lead 3 the end of which projectsbeyond the end of the member 2 and the casing 1. The casing 1 is a thintube, preferably made of metal, uni.- form in cross-section throughoutits len th, except that at one end it is 1provided wit a flange 4 turnedinwardly s ightl At the other end of the casing 1, is a tu ular piece 5of any suitable material, preferably metal, having tapering walls, oneend of which 15 ada ted to fit. within the end of the casing 1. Theportion 6 of the tubular extension 5 of the casin which fits within thecasing 1 has a. three formed therein, and this por bore tion 6 of themember 5 is secured to the end ot the casing 1. The lead holder 2 ismade of a material possessing elasticity such as wood and has an axialbore therein, as shown at 7, to receive the stick of lead 3. At one end,8, the holder 2 is tapered to correspond with the ta er of the member 5,and this end of the ho der is provided with a lengthwise slot 9 so as toform clamp jaws at this end of the holder 2, one on either side of theslot 9. Adjacent to this end, the holder 3 is threaded as shown at 10 tocorrespond with the threads formed in the member 5. To the opposite endof the lead-holder 2, is secured a tubular metallic cap 11, one end ofwhich is provided with an outwardl turned flange 12 adapted to eoactwith tie flange 4 on the casing l, to preclude the withdrawal of thelead-holding member 2 from within the casing 1.. The end of cap 11 maybe finished oil in any suitable manner. It is here shown as adapted tohold a rubber 13.

In assembling the arts, the cap 11 is secured upon the end 0 the holder2, as shown in Fl". 6, and the end of the holder which is provided withthe cap is then inserted in the left end of the casing 1 and the holdermoved to the right until it lies within the casing l in the relation inwhich those parts are shown in Fi 2. The flange 12 on the cap 11 is ofSn size that it will pass freely within the casing 1, but will coactwith the flange 4 on the casing to preclude movement of flange 12 estflange 4-. With the parts in this position, the tubular piece 5 isinserted over the end of the holder 2 and its threaded end is movedwithin the end of the casin 1, by screwing the piece up upon the threadsof the holder 2, until the piece 5 and casin 1 are in the positions inwhich they are sworn in Fig. 2. The overlapping ortions of these twoparts are then secure together in any suitable manner, as by brazingthem together or merel subjecting them to ressure sufiicient to old themtogether.

he stick of lead 3 is then inserted throiwh the o cnin in the end of thepiece 6 into the of t e holder 2. As thus constructed, it will be seenthat by turning the leadholder 2 at the end 11 thereof which pro ectsbeyond the end of the casin 1, the coactm threads 10 and 6 on the hol er2 and piece will cause the holder to be moved axially within the casing1, so as to force the clampjaws at the end of the holder 2 against theulterior tapering Walls of the piece 5 and thus cause these clamp-jawsto grip the stick of lead 3 between them. The clamp-jaws are ofconsiderable length and therefore grip i the stick of lead over asubstantial area; for i this reason, and for the reason that theclamp-jaws are made of a material such as wood, the danger of breakingthe stick of t lead when gripping it by the clamp-jaws is reduced to aminimum. 1

The shape of the casing may be such that the pencil 1s convenient to useand of attractive appearance and the simplicity of the construction andthe small number of parts 1 permit of manufacturing it at very low cost.

The provision of the means for preclud i ing withdrawal of the holderfrom the easing, consisting of a flange on the projecting end of theholder and a coacting flange on the adjacent end of the casing, is ofgreat importance since it prevents the user of the pencil fromdisassembling the parts.

The structure above described may be modified in many respects withoutdeparting r from the spirit of my invention. Thus there shown in Fig. 7an embodiment of the invention in which the body of the casing and thetapered end portion are integral but the thread 14 on the interior wallof the casing j is separately formed and secured in position j in anysuitable manner. In other respects 1 the pencil of Fig. 7 is like thatof Fig. 2. The thread need not be located adjacent to the point end ofthe pencil but may be at any desired point along the length of theholder, 1 it being only necessary that this thread operate to force theholder forward and cause i the clamp-jaws to be contracted upon thejlead and that it be so located as to permit of forming the parts topreclude Withdrawal of the holder from the casing.

Having now described my invention, what I claim as new therein anddesire to secure by Letters Patent is as follows:

1. A pencil comprising a tubular easing, a tapered end .portion at oneend of said casing, a screw-thread formed separately from said casingand mounted within the same so that the threads thereof do not show onthe exterior of the casing, a lead-holder extending within the casingand having clamp-jaws at one end thereof engaging the interior walls ofsaid tapered portion and the other end projecting beyond the oppositeend of the casing, said holder having an axial bore and being threadedto coact with said thread on the casing, a stick of lead in said bore,and cooperating flanges on said projecting end of the holder and theadjacent end of the casing for precluding withdrawal of the holder fromthe casing, substantially as set forth.

2. A pencil comprising a tubular metallic casing, a tapered end portionsecured to one end of the casing, a screw-thread formed integral withsaid tapered end portion and extending within said tubular casing, aleadholder extending within the casing and having clampjaws at one endthereot engaging the interior walls of said tapered portion, the otherend projecting beyond the opposite end of the casing, said holder havingan axial bore and being threaded to coact with said thread on thecasing, a stick of lead in said bore, and cooperating flanges 011 saidprojecting end of the holder and the adjacent end 01' the casing forprecluding withdrawal of the holder from the casing, substantially asset for-thi t This specification signed and witnessed this23rd day ofNovbr., 1908.

i EGON L. SCHMITZ.

lVitnesses:

D. S. EDMONDS, I. BARTLETT.

